mirror of
https://github.com/samsonjs/media.git
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Refactor #6.HLS.0
Mechanical step to create a new HlsSource in the library. Note that naming is now confusing. This will be fixed in the next CL, when: HlsSource -> HlsSampleSource HlsSampleSource+HlsOutput -> HlsOutput ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=122054800
This commit is contained in:
olly
Oliver Woodman
parent
9ee3030b79
commit
5ca9f62753
5 changed files with 290 additions and 129 deletions
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@ -24,18 +24,24 @@ import com.google.android.exoplayer.MediaCodecTrackRenderer.DecoderInitializatio
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import com.google.android.exoplayer.MediaCodecUtil.DecoderQueryException;
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import com.google.android.exoplayer.SampleSource;
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import com.google.android.exoplayer.TrackGroupArray;
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import com.google.android.exoplayer.dash.DashSampleSource;
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import com.google.android.exoplayer.demo.player.DemoPlayer;
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import com.google.android.exoplayer.demo.player.SourceBuilder;
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import com.google.android.exoplayer.demo.ui.TrackSelectionHelper;
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import com.google.android.exoplayer.drm.UnsupportedDrmException;
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import com.google.android.exoplayer.extractor.ExtractorSampleSource;
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import com.google.android.exoplayer.hls.HlsSource;
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import com.google.android.exoplayer.metadata.id3.GeobFrame;
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import com.google.android.exoplayer.metadata.id3.Id3Frame;
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import com.google.android.exoplayer.metadata.id3.PrivFrame;
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import com.google.android.exoplayer.metadata.id3.TxxxFrame;
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import com.google.android.exoplayer.smoothstreaming.SmoothStreamingSampleSource;
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import com.google.android.exoplayer.text.CaptionStyleCompat;
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import com.google.android.exoplayer.text.Cue;
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import com.google.android.exoplayer.text.SubtitleLayout;
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import com.google.android.exoplayer.upstream.Allocator;
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import com.google.android.exoplayer.upstream.DataSource;
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import com.google.android.exoplayer.upstream.DataSourceFactory;
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import com.google.android.exoplayer.upstream.DefaultAllocator;
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import com.google.android.exoplayer.upstream.DefaultDataSourceFactory;
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import com.google.android.exoplayer.util.DebugTextViewHelper;
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import com.google.android.exoplayer.util.Util;
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@ -260,18 +266,25 @@ public class PlayerActivity extends Activity implements SurfaceHolder.Callback,
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// Internal methods
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@SuppressWarnings("unused")
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private SampleSource buildSource(Uri uri, String id, String provider, int type) {
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switch (type) {
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case Util.TYPE_SS:
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return SourceBuilder.buildSmoothStreamingSource(player, dataSourceFactory, uri,
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new SmoothStreamingTestMediaDrmCallback());
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// TODO: Bring back DRM support. new SmoothStreamingTestMediaDrmCallback()
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return new SmoothStreamingSampleSource(uri, dataSourceFactory, player.getBandwidthMeter(),
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player.getMainHandler(), player);
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case Util.TYPE_DASH:
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return SourceBuilder.buildDashSource(player, dataSourceFactory, uri,
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new WidevineTestMediaDrmCallback(id, provider));
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// TODO: Bring back DRM support. new WidevineTestMediaDrmCallback(id, provider)
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return new DashSampleSource(uri, dataSourceFactory, player.getBandwidthMeter(),
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player.getMainHandler(), player);
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case Util.TYPE_HLS:
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return SourceBuilder.buildHlsSource(player, dataSourceFactory, uri);
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return new HlsSource(uri, dataSourceFactory, player.getBandwidthMeter(),
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player.getMainHandler(), player);
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case Util.TYPE_OTHER:
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return SourceBuilder.buildExtractorSource(player, dataSourceFactory, uri);
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Allocator allocator = new DefaultAllocator(C.DEFAULT_BUFFER_SEGMENT_SIZE);
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DataSource dataSource = dataSourceFactory.createDataSource(player.getBandwidthMeter());
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return new ExtractorSampleSource(uri, dataSource, allocator,
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C.DEFAULT_MUXED_BUFFER_SIZE, player.getMainHandler(), player, 0);
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default:
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throw new IllegalStateException("Unsupported type: " + type);
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}
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@ -279,7 +279,7 @@ public class DemoPlayer implements ExoPlayer.Listener, DefaultTrackSelector.Even
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return player.getPlayWhenReady();
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}
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/* package */ Handler getMainHandler() {
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public Handler getMainHandler() {
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return mainHandler;
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}
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@ -1,109 +0,0 @@
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.android.exoplayer.demo.player;
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import com.google.android.exoplayer.C;
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import com.google.android.exoplayer.DefaultLoadControl;
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import com.google.android.exoplayer.LoadControl;
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import com.google.android.exoplayer.MultiSampleSource;
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import com.google.android.exoplayer.SampleSource;
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import com.google.android.exoplayer.chunk.FormatEvaluator;
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import com.google.android.exoplayer.dash.DashSampleSource;
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import com.google.android.exoplayer.drm.MediaDrmCallback;
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import com.google.android.exoplayer.extractor.ExtractorSampleSource;
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import com.google.android.exoplayer.hls.HlsChunkSource;
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import com.google.android.exoplayer.hls.HlsSampleSource;
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import com.google.android.exoplayer.hls.PtsTimestampAdjusterProvider;
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import com.google.android.exoplayer.hls.playlist.HlsPlaylist;
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import com.google.android.exoplayer.hls.playlist.HlsPlaylistParser;
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import com.google.android.exoplayer.smoothstreaming.SmoothStreamingSampleSource;
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import com.google.android.exoplayer.upstream.Allocator;
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import com.google.android.exoplayer.upstream.BandwidthMeter;
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import com.google.android.exoplayer.upstream.DataSource;
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import com.google.android.exoplayer.upstream.DataSourceFactory;
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import com.google.android.exoplayer.upstream.DefaultAllocator;
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import com.google.android.exoplayer.util.ManifestFetcher;
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import android.net.Uri;
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import android.os.Handler;
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/**
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* A utility class for building {@link SampleSource} instances.
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*/
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public class SourceBuilder {
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private SourceBuilder() {}
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// TODO[REFACTOR]: Bring back DASH DRM support.
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// TODO[REFACTOR]: Bring back DASH UTC timing element support.
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public static SampleSource buildDashSource(DemoPlayer player, DataSourceFactory dataSourceFactory,
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Uri uri, MediaDrmCallback drmCallback) {
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return new DashSampleSource(uri, dataSourceFactory, player.getBandwidthMeter(),
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player.getMainHandler(), player);
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}
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// TODO[REFACTOR]: Bring back DRM support.
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public static SampleSource buildSmoothStreamingSource(DemoPlayer player,
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DataSourceFactory dataSourceFactory, Uri uri, MediaDrmCallback drmCallback) {
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return new SmoothStreamingSampleSource(uri, dataSourceFactory, player.getBandwidthMeter(),
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player.getMainHandler(), player);
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}
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public static SampleSource buildHlsSource(DemoPlayer player, DataSourceFactory dataSourceFactory,
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Uri uri) {
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HlsPlaylistParser parser = new HlsPlaylistParser();
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DataSource manifestDataSource = dataSourceFactory.createDataSource();
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// TODO[REFACTOR]: This needs releasing.
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ManifestFetcher<HlsPlaylist> manifestFetcher = new ManifestFetcher<>(uri, manifestDataSource,
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parser);
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Handler mainHandler = player.getMainHandler();
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BandwidthMeter bandwidthMeter = player.getBandwidthMeter();
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LoadControl loadControl = new DefaultLoadControl(
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new DefaultAllocator(C.DEFAULT_BUFFER_SEGMENT_SIZE));
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PtsTimestampAdjusterProvider timestampAdjusterProvider = new PtsTimestampAdjusterProvider();
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DataSource defaultDataSource = dataSourceFactory.createDataSource(bandwidthMeter);
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HlsChunkSource defaultChunkSource = new HlsChunkSource(manifestFetcher, C.TRACK_TYPE_DEFAULT,
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defaultDataSource, timestampAdjusterProvider,
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new FormatEvaluator.AdaptiveEvaluator(bandwidthMeter));
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HlsSampleSource defaultSampleSource = new HlsSampleSource(defaultChunkSource, loadControl,
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C.DEFAULT_MUXED_BUFFER_SIZE, mainHandler, player, C.TRACK_TYPE_VIDEO);
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DataSource audioDataSource = dataSourceFactory.createDataSource(bandwidthMeter);
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HlsChunkSource audioChunkSource = new HlsChunkSource(manifestFetcher, C.TRACK_TYPE_AUDIO,
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audioDataSource, timestampAdjusterProvider, null);
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HlsSampleSource audioSampleSource = new HlsSampleSource(audioChunkSource, loadControl,
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C.DEFAULT_AUDIO_BUFFER_SIZE, mainHandler, player, C.TRACK_TYPE_AUDIO);
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DataSource subtitleDataSource = dataSourceFactory.createDataSource(bandwidthMeter);
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HlsChunkSource subtitleChunkSource = new HlsChunkSource(manifestFetcher, C.TRACK_TYPE_TEXT,
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subtitleDataSource, timestampAdjusterProvider, null);
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HlsSampleSource subtitleSampleSource = new HlsSampleSource(subtitleChunkSource, loadControl,
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C.DEFAULT_TEXT_BUFFER_SIZE, mainHandler, player, C.TRACK_TYPE_TEXT);
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return new MultiSampleSource(defaultSampleSource, audioSampleSource, subtitleSampleSource);
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}
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public static SampleSource buildExtractorSource(DemoPlayer player,
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DataSourceFactory dataSourceFactory, Uri uri) {
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Allocator allocator = new DefaultAllocator(C.DEFAULT_BUFFER_SEGMENT_SIZE);
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DataSource dataSource = dataSourceFactory.createDataSource(player.getBandwidthMeter());
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return new ExtractorSampleSource(uri, dataSource, allocator,
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C.DEFAULT_MUXED_BUFFER_SIZE, player.getMainHandler(), player, 0);
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}
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}
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@ -45,7 +45,7 @@ import java.util.List;
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/**
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* A {@link SampleSource} for HLS streams.
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*/
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public final class HlsSampleSource implements SampleSource, Loader.Callback {
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public final class HlsSampleSource implements Loader.Callback {
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/**
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* The default minimum number of times to retry loading data prior to failing.
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@ -139,9 +139,6 @@ public final class HlsSampleSource implements SampleSource, Loader.Callback {
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pendingResetPositionUs = C.UNSET_TIME_US;
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}
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// SampleSource implementation.
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@Override
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public boolean prepare(long positionUs) throws IOException {
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if (prepared) {
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return true;
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@ -173,17 +170,14 @@ public final class HlsSampleSource implements SampleSource, Loader.Callback {
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return false;
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}
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@Override
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public long getDurationUs() {
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return chunkSource.getDurationUs();
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}
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@Override
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public TrackGroupArray getTrackGroups() {
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return trackGroups;
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}
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@Override
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public TrackStream[] selectTracks(List<TrackStream> oldStreams,
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List<TrackSelection> newSelections, long positionUs) {
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Assertions.checkState(prepared);
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@ -233,7 +227,6 @@ public final class HlsSampleSource implements SampleSource, Loader.Callback {
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return newStreams;
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}
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@Override
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public void continueBuffering(long playbackPositionUs) {
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downstreamPositionUs = playbackPositionUs;
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discardSamplesForDisabledTracks();
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@ -242,7 +235,6 @@ public final class HlsSampleSource implements SampleSource, Loader.Callback {
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}
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}
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@Override
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public long readReset() {
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if (notifyReset) {
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notifyReset = false;
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@ -251,7 +243,6 @@ public final class HlsSampleSource implements SampleSource, Loader.Callback {
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return C.UNSET_TIME_US;
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}
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@Override
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public long getBufferedPositionUs() {
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if (loadingFinished) {
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return C.END_OF_SOURCE_US;
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@ -273,12 +264,10 @@ public final class HlsSampleSource implements SampleSource, Loader.Callback {
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}
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}
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@Override
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public void seekToUs(long positionUs) {
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seekToInternal(positionUs);
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}
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@Override
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public void release() {
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if (enabledTrackCount > 0) {
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loadControl.unregister(this);
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@ -0,0 +1,268 @@
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.android.exoplayer.hls;
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import com.google.android.exoplayer.C;
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import com.google.android.exoplayer.DefaultLoadControl;
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import com.google.android.exoplayer.LoadControl;
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import com.google.android.exoplayer.SampleSource;
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import com.google.android.exoplayer.TrackGroup;
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import com.google.android.exoplayer.TrackGroupArray;
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import com.google.android.exoplayer.TrackSelection;
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import com.google.android.exoplayer.TrackStream;
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import com.google.android.exoplayer.chunk.ChunkTrackStreamEventListener;
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import com.google.android.exoplayer.chunk.FormatEvaluator;
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import com.google.android.exoplayer.hls.playlist.HlsPlaylist;
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import com.google.android.exoplayer.hls.playlist.HlsPlaylistParser;
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import com.google.android.exoplayer.upstream.BandwidthMeter;
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import com.google.android.exoplayer.upstream.DataSource;
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import com.google.android.exoplayer.upstream.DataSourceFactory;
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import com.google.android.exoplayer.upstream.DefaultAllocator;
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import com.google.android.exoplayer.util.Assertions;
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import com.google.android.exoplayer.util.ManifestFetcher;
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import android.net.Uri;
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import android.os.Handler;
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import android.util.Pair;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.IdentityHashMap;
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import java.util.List;
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/**
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* A {@link SampleSource} for HLS streams.
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*/
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public final class HlsSource implements SampleSource {
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private final ManifestFetcher<HlsPlaylist> manifestFetcher;
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private final HlsSampleSource[] sources;
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private final IdentityHashMap<TrackStream, HlsSampleSource> trackStreamSources;
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private final int[] selectedTrackCounts;
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private boolean prepared;
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private boolean seenFirstTrackSelection;
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private long durationUs;
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private TrackGroupArray trackGroups;
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private HlsSampleSource[] enabledSources;
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public HlsSource(Uri uri, DataSourceFactory dataSourceFactory, BandwidthMeter bandwidthMeter,
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Handler eventHandler, ChunkTrackStreamEventListener eventListener) {
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HlsPlaylistParser parser = new HlsPlaylistParser();
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DataSource manifestDataSource = dataSourceFactory.createDataSource();
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manifestFetcher = new ManifestFetcher<>(uri, manifestDataSource, parser);
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LoadControl loadControl = new DefaultLoadControl(
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new DefaultAllocator(C.DEFAULT_BUFFER_SEGMENT_SIZE));
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PtsTimestampAdjusterProvider timestampAdjusterProvider = new PtsTimestampAdjusterProvider();
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DataSource defaultDataSource = dataSourceFactory.createDataSource(bandwidthMeter);
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HlsChunkSource defaultChunkSource = new HlsChunkSource(manifestFetcher, C.TRACK_TYPE_DEFAULT,
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defaultDataSource, timestampAdjusterProvider,
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new FormatEvaluator.AdaptiveEvaluator(bandwidthMeter));
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HlsSampleSource defaultSampleSource = new HlsSampleSource(defaultChunkSource, loadControl,
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C.DEFAULT_MUXED_BUFFER_SIZE, eventHandler, eventListener, C.TRACK_TYPE_VIDEO);
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DataSource audioDataSource = dataSourceFactory.createDataSource(bandwidthMeter);
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HlsChunkSource audioChunkSource = new HlsChunkSource(manifestFetcher, C.TRACK_TYPE_AUDIO,
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audioDataSource, timestampAdjusterProvider, null);
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HlsSampleSource audioSampleSource = new HlsSampleSource(audioChunkSource, loadControl,
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C.DEFAULT_AUDIO_BUFFER_SIZE, eventHandler, eventListener, C.TRACK_TYPE_AUDIO);
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DataSource subtitleDataSource = dataSourceFactory.createDataSource(bandwidthMeter);
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HlsChunkSource subtitleChunkSource = new HlsChunkSource(manifestFetcher, C.TRACK_TYPE_TEXT,
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subtitleDataSource, timestampAdjusterProvider, null);
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HlsSampleSource subtitleSampleSource = new HlsSampleSource(subtitleChunkSource, loadControl,
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C.DEFAULT_TEXT_BUFFER_SIZE, eventHandler, eventListener, C.TRACK_TYPE_TEXT);
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sources = new HlsSampleSource[] {defaultSampleSource, audioSampleSource, subtitleSampleSource};
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selectedTrackCounts = new int[sources.length];
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trackStreamSources = new IdentityHashMap<>();
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}
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@Override
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public boolean prepare(long positionUs) throws IOException {
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if (prepared) {
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return true;
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}
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boolean sourcesPrepared = true;
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for (HlsSampleSource source : sources) {
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sourcesPrepared &= source.prepare(positionUs);
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}
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if (!sourcesPrepared) {
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return false;
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}
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durationUs = 0;
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int totalTrackGroupCount = 0;
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for (HlsSampleSource source : sources) {
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totalTrackGroupCount += source.getTrackGroups().length;
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if (durationUs != C.UNSET_TIME_US) {
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long sourceDurationUs = source.getDurationUs();
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durationUs = sourceDurationUs == C.UNSET_TIME_US
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? C.UNSET_TIME_US : Math.max(durationUs, sourceDurationUs);
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}
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}
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TrackGroup[] trackGroupArray = new TrackGroup[totalTrackGroupCount];
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int trackGroupIndex = 0;
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for (HlsSampleSource source : sources) {
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int sourceTrackGroupCount = source.getTrackGroups().length;
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for (int j = 0; j < sourceTrackGroupCount; j++) {
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trackGroupArray[trackGroupIndex++] = source.getTrackGroups().get(j);
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}
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}
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trackGroups = new TrackGroupArray(trackGroupArray);
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prepared = true;
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return true;
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}
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@Override
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public long getDurationUs() {
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return durationUs;
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}
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@Override
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public TrackGroupArray getTrackGroups() {
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return trackGroups;
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}
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@Override
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public TrackStream[] selectTracks(List<TrackStream> oldStreams,
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List<TrackSelection> newSelections, long positionUs) {
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Assertions.checkState(prepared);
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TrackStream[] newStreams = new TrackStream[newSelections.size()];
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// Select tracks for each source.
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int enabledSourceCount = 0;
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for (int i = 0; i < sources.length; i++) {
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selectedTrackCounts[i] += selectTracks(sources[i], oldStreams, newSelections, positionUs,
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newStreams);
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if (selectedTrackCounts[i] > 0) {
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enabledSourceCount++;
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}
|
||||
}
|
||||
// Update the enabled sources.
|
||||
enabledSources = new HlsSampleSource[enabledSourceCount];
|
||||
enabledSourceCount = 0;
|
||||
for (int i = 0; i < sources.length; i++) {
|
||||
if (selectedTrackCounts[i] > 0) {
|
||||
enabledSources[enabledSourceCount++] = sources[i];
|
||||
}
|
||||
}
|
||||
seenFirstTrackSelection = true;
|
||||
return newStreams;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void continueBuffering(long positionUs) {
|
||||
for (HlsSampleSource source : enabledSources) {
|
||||
source.continueBuffering(positionUs);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public long readReset() {
|
||||
long resetPositionUs = C.UNSET_TIME_US;
|
||||
for (HlsSampleSource source : enabledSources) {
|
||||
long childResetPositionUs = source.readReset();
|
||||
if (resetPositionUs == C.UNSET_TIME_US) {
|
||||
resetPositionUs = childResetPositionUs;
|
||||
} else if (childResetPositionUs != C.UNSET_TIME_US) {
|
||||
resetPositionUs = Math.min(resetPositionUs, childResetPositionUs);
|
||||
}
|
||||
}
|
||||
return resetPositionUs;
|
||||
}
|
||||
|
||||
@Override
|
||||
public long getBufferedPositionUs() {
|
||||
long bufferedPositionUs = durationUs != C.UNSET_TIME_US ? durationUs : Long.MAX_VALUE;
|
||||
for (HlsSampleSource source : enabledSources) {
|
||||
long rendererBufferedPositionUs = source.getBufferedPositionUs();
|
||||
if (rendererBufferedPositionUs == C.UNSET_TIME_US) {
|
||||
return C.UNSET_TIME_US;
|
||||
} else if (rendererBufferedPositionUs == C.END_OF_SOURCE_US) {
|
||||
// This source is fully buffered.
|
||||
} else {
|
||||
bufferedPositionUs = Math.min(bufferedPositionUs, rendererBufferedPositionUs);
|
||||
}
|
||||
}
|
||||
return bufferedPositionUs == Long.MAX_VALUE ? C.UNSET_TIME_US : bufferedPositionUs;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void seekToUs(long positionUs) {
|
||||
for (HlsSampleSource source : enabledSources) {
|
||||
source.seekToUs(positionUs);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void release() {
|
||||
manifestFetcher.release();
|
||||
for (HlsSampleSource source : sources) {
|
||||
source.release();
|
||||
}
|
||||
}
|
||||
|
||||
// Internal methods.
|
||||
|
||||
private int selectTracks(HlsSampleSource source, List<TrackStream> allOldStreams,
|
||||
List<TrackSelection> allNewSelections, long positionUs, TrackStream[] allNewStreams) {
|
||||
// Get the subset of the old streams for the source.
|
||||
ArrayList<TrackStream> oldStreams = new ArrayList<>();
|
||||
for (int i = 0; i < allOldStreams.size(); i++) {
|
||||
TrackStream stream = allOldStreams.get(i);
|
||||
if (trackStreamSources.get(stream) == source) {
|
||||
trackStreamSources.remove(stream);
|
||||
oldStreams.add(stream);
|
||||
}
|
||||
}
|
||||
// Get the subset of the new selections for the source.
|
||||
ArrayList<TrackSelection> newSelections = new ArrayList<>();
|
||||
int[] newSelectionOriginalIndices = new int[allNewSelections.size()];
|
||||
for (int i = 0; i < allNewSelections.size(); i++) {
|
||||
TrackSelection selection = allNewSelections.get(i);
|
||||
Pair<HlsSampleSource, Integer> sourceAndGroup = getSourceAndGroup(selection.group);
|
||||
if (sourceAndGroup.first == source) {
|
||||
newSelectionOriginalIndices[newSelections.size()] = i;
|
||||
newSelections.add(new TrackSelection(sourceAndGroup.second, selection.getTracks()));
|
||||
}
|
||||
}
|
||||
// Do nothing if nothing has changed, except during the first selection.
|
||||
if (seenFirstTrackSelection && oldStreams.isEmpty() && newSelections.isEmpty()) {
|
||||
return 0;
|
||||
}
|
||||
// Perform the selection.
|
||||
TrackStream[] newStreams = source.selectTracks(oldStreams, newSelections, positionUs);
|
||||
for (int j = 0; j < newStreams.length; j++) {
|
||||
allNewStreams[newSelectionOriginalIndices[j]] = newStreams[j];
|
||||
trackStreamSources.put(newStreams[j], source);
|
||||
}
|
||||
return newSelections.size() - oldStreams.size();
|
||||
}
|
||||
|
||||
private Pair<HlsSampleSource, Integer> getSourceAndGroup(int group) {
|
||||
int totalTrackGroupCount = 0;
|
||||
for (HlsSampleSource source : sources) {
|
||||
int sourceTrackGroupCount = source.getTrackGroups().length;
|
||||
if (group < totalTrackGroupCount + sourceTrackGroupCount) {
|
||||
return Pair.create(source, group - totalTrackGroupCount);
|
||||
}
|
||||
totalTrackGroupCount += sourceTrackGroupCount;
|
||||
}
|
||||
throw new IndexOutOfBoundsException();
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in a new issue